Hydrocarbon-burner.



No. 784,787. PATENTED MAR. 14, 1905.

F. E. GROUT. HYDROGARBON BURNER.

APPLICATION FILED JULY 14, 1904.

2 SHEETS-SHEET 1.

1 as i v 5 2 Z 4 a w m 7 Z mm mmm PATENTED MAR. 14, 1905'.

F. E. GROUT. HYDROUARBON BURNER.

APPLIOATION FILED JULY 14,1904.

2 SHEETS-SHEET 2.

/II M I l 75'C (19. Zr eaZerzcZJ Z Ciro at UNITED STATES Patented March14, 1905.

PATENT OEEIcE.

HYDROCARBON-BURNER.

SPECIFICATION forming part of Letters Patent No. 784,787, dated March14:, 1905.

Application filed July 14, 1904. Serial No. 216.481.

To all whom, it nuty concern.-

Be it known that I, FREDERICK E. GROUT, a citizen of the United States,and a resident of Orange, county of Franklin, State of Massachusetts,have invented an Improvement in H ydrocarbon-Burners, of which thefollowing description, in connection with the accompanying drawings, isa specification, like figures on the drawings representing like parts.

This invention relates to hydrocarbon-bu rners, and has been especiallydesigned as a burner for automobiles, which burner can be used foreither kerosene, gasolene, or any other similar fuel.

One feature of the invention relates to a novel construction by means ofwhich the air is delivered to the flame in such a way as to get the bestpossible combustion; and another feature of the invention relates tonovel means for controlling the supply of liquid fuel to thevaporizing-coil and the vaporized fuel to the burner-openings, wherebywhen the supply of liquid fuel to the vaporizing-coil is reduced to aminimum the vapor is delivered to a minimum number of burner-openings,the number being just sufficient to keep up steam in the boiler.

Other features of my invention will be more fully hereinafter describedand then pointed out in the claims.

Figure 1 is a top plan view of my improved burner. Fig. 2 is a sectionon the line a, Fig. 1. Fig. 3 is a top plan view showing thevaporizing-coil removed. Fig. 4 is a section on the line y y, Fig. 1;and Fig. 5 is a section on the line a a, Fig. 3. Fig. 6 is asection onthe line b b, Fig. 3; and Fig. '7 shows the leaking-valve.

The burner comprises a burner-plate 3, which forms the top of avapor-chamber 4, into which chamber the vaporized fuel is delivered, aswill be presently described. In this form of my burner the burner-plate3 is cylindrical and is surrounded by a suitable flange 5, on which theboiler proper rests. The shape of the burner-plate and flange, however,may be varied without departing from the invention. Said burner-plate isprovided with a plurality of corrugations which preferably extendparallel to each other, and in the ridge 7 of each corrugation areformed a plurality of burner-openings 6, preferably in the form ofslits. The central rib 8 is shown as a larger size than the other ribs,and it has therein burner-openings 9 in the form of slits, which, itwill be seen, are larger than the slits 6. Situated immediately beneaththe rib 8 is a rotary member 10, which is tubular at one end, as at 11,and is journaled at said end in a bearing 12 in the flange 5 of theburner. At the other end said member 10 is provided with the neck 12,which extends through the flange 5 and is journaled therein, as shown.The end of the tubular portion 11 is open to the atmosphere, andstanding in line therewith is a jet-nozzle or valve 1 1, through whichthe vaporized fuel is delivered into the tubular mcm-' ber 11, fromwhich it passes to the vaporchamber 4.

15 designates a pipe leading to the source of fuel-supply. Said pipeleads into a vaporizing-coil 1'7 and is controlled by a suitable valve16, which is of peculiar construction, as will be presently described.The vaporingcoil 17 stands directly over the burner-plate and has aportion 18 thereof extending along over the burner-openings 9 in the rib8. I Said portion 18 extends to a coil 20, which coil is connected tothe needle valve or nozzle 14. Said coil 20 is preferably inclosed in acasing 21 and is constructed to be heated either by a suitable torch orby a burner 22, which gets its supply from the pipe 15 by means of aconnection 23. This particular arrangement of vaporizing-coil and torchforms no part of my present invention.

The valve 16 is what I call a "leakingvalvethat is, it is so constructedthat the supply of oil to the pipe 17 can never be en tirely cut off.This result can be accomplished by providing the valve with a very smallgroove 24, (see Fig. 7,) so thatwhen the valve is closed onto its seatthe liquid fuel can still leak past the same. The object of employing aminimum by closing of the valve 16 the amount of vapor delivered to thevapor-chamber 4 will be also reduced to a minimum, and ifsaid minimumquantity of vapor were allowed to distribute itself throughout thevapor-chamber 4L combustion would cease because of the excessive airwhich the vaporchamber would contain. In order to avoid this, I haveprovided means whereby the closing of the valve 16 and the consequentcutting down of the supply of liquid fuel to a minimum is accompanied bythe cutting out of a sufiicient number of the burner-openings, so thatcombustion will be maintained. In this form of my invention this isaccomplished by means of the rotary member 10, above re ferrcd to,which, it will be seen, is substantially semicylindrical throughout mostof its length. The shape of the member 10 is such that when it is in aposition shown in Figs. 2 and 4 it completely covers and closes theburner-openings 9, but when the position thereof is reversed it openssaid burner-openings 9, but cuts oil communication between the tube 11and the vapor-chamber 1, thus practically reducing the size of thevapor-chamber to the interior dimensions of the member 10. The member10, which is in the nature of a valve, is constructed to be operatedsimultaneously with the valve 16, the connections between said twovalves being such that when the valve 16 is fully open the valve 10 isin the position shown in Figs. 2 and at, while when said valve 16 isclosed the valve 10 has been reversed. In this form of my invention Ihave provided the end of the stem 12 with a gear 26, meshing with a gear27 on the stem 28 of the valve 16, so that the valve 10 is operated bythe valve 16.

l Vhen the burner is in use for generating steam, the valves 16 and 10are opened, as shown in Figs. 2 and 4t, and the liquid fuel on enteringthe vaporizing-coil becomes vaporized, and the vapor is thrown into andthrough the tube 11 and distributes itself throughout the vapor-chamber4;, as usual. The burneropenings 9 are closed, so that the vapor isignited at each of the smaller burner-openings 6. \Vhenever it isdesired to cut down the amount of heat generated and to generate onlysuflicient heat to keep the steam up in the boiler when no steam isbeing usedas, for instance, when the automobile is at rest-the valve 16is closed, this operation reversing the position of the valve 10 andclosing communication between the inlet-tube 11 and the vaporchamber 4:.At the same time the burneropenings 9 are uncovered. l/V hen the partsare in this position, a minimum amount of liquid fuel is delivered tothe vaporizing-coil, where it becomes vaporized, and is then deliveredto the reduced vapor-chamber formed by the member 10, from whence itpasses to the burner-openings 9 and is ignited. There will be,therefore, a minimum number of burneropenings at which combustion takesplace, and the heat thus generated is just sufficient to keep the steamup in the boiler.

For the purpose of supplying sufficient air to the flame to get goodcombustion I place in the grooves of the corrugations in theburner-plate 3 air-supplying pipes 29, which have slits or jet-openings30 therein, through which the air is delivered. These air-pipes are soplaced that the jet-openings 30 stand below the burner-openings 6,whereby the jets of air are delivered upwardly toward theburner-openings. This I regard quite important, because there is verymuch less danger of the flame being blown out by jets of air when thusdelivered than when they are delivered either downwardly orhorizontally. For supplying air to the pipes 10 I propose to employ thehood 33, which is illustrated as situated beneath the burner-chamber andas open at one end, as at 34, said open end when the burner is in usebeing directed forwardly or in the direction toward which the automobileis going. The back end 35 of said hood is shaped to partially inclosethe flange 5, and the air-pipes 29 extend through the flange, and thuscommunicate at one end with the hood, as seen in Fig. 6. At the otherend said pipes are preferably extended through the flange 5, as seen inFig. 5, the pipes therefor being open to the air at both ends. The airis delivered through the jet-openings 30 partly by suction created bythe upward movement of the products of combustion and partly by theforward movement of the vehicle and the consequent rush of air into thehood 38. From the above it will be seen that I have provided a burner inwhich the supply of liquid fuel to the vaporizing-coil and the number ofburner-openings to which the vaporized fuel is delivered are controlledinde-. pendently, but simultaneously, and while I have shown one way ofaccomplishing this I do not wish to be limited to the constructionshown, as the details of the device may be varied without departing fromthe invention.

Having fully described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

1 In a burner, a burner-plate forming the top of a vapor-chamber andhaving a plurality of burner-openings, a vaporizing-coil above saidburner-plate, a valve to control the supply of liquid fuel to thevaporizing-coil, means to determine the number of burner-openings towhich the vaporized fuel is delivered, and connections between saidmeans and the valve.

2. In a burner, a burner-plate having a plurality of burner-openings, avaporizing-coil above said plate, a valve to control the supply ofliquid fuel to the vaporizing-coil, means to control the number ofburner openings to which the vaporized fuel is delivered, and mechanicalconnections between said means and said valve.

3. In a burner, a burner-plate having a plurality of burner-openings, avaporizing-coil above said plate, a valve controlling the supply ofliquid fuel to the vaporizing-coil, another valve controlling the numberof burneropenings to which the vaporized fuel is delivered, and meansconnecting said valves for simultaneous operation.

4. In a burner, a burner-plate having a plurality of burner-openings, avaporizing-coil, a valve controlling the supply of liquid fuel to thevaporizing-coil and constructed to give a minimum and a maximum flow inits two adjusted positions, means to control the number ofburner-openings to which vaporized fuel is delivered, and connectionsbetween said means and the valve whereby the former is operated by thelatter. i

5. In a burner, a burner-plate having a plurality of burner-openings, avaporizing-coil, a valve controlling the supply of liquid fuel to saidcoil, said valve being constructed to give a maximum and a minimum flow,and another valve operatively connected to the first-named valve andcontrolling the number of burneropenings to which the vaporized fuel isdelivered, said latter valve when in one position shutting off thesupply of vapor from a mini mum number of burner-openings, and when inanother position shutting 06 the supplyof vapor from a maximum number ofopenings.

6. In a burner, a burner-plate having a plurality of burner-openings, avaporizing-coil, a valve controlling the supply of liquid fuel to saidcoil, said valve being constructed to give a maximum and a minimum flow,another valve controlling the number of burner-openings to which thevaporized fuel is delivered, said valve when in one position shuttingoff the supply of vapor from a minimum number of burner-openings andwhen in another position shutting off the supply of vapor from a maximumnumber of burner-openings, and means to operate said valvessimultaneously.

7. In a burner, a burner-plate having parallel corrugations, the ridgesof said corrugations being provided with burner-openings, and air-supplypipes in the grooves between the ridges, said pipes having openingssituated below the level of the burner-openings.

8. In a burner, a burner-plate having parallel corrugations, the ridgesof said corrugations being provided with burner-openings, and air-supplypipes in the grooves between the ridges, said pipes having openingssituated below the level of the burner-openings, and a hood beneath theburner and into which the air-supplying pipes open, the mouth ofthe hoodopening at the front of the burner.

9. In a burner, a burner-plate forming the top of the vapor-chamber andhaving a plurality of burner-openings, a vaporizing-coil above theburner-plate, and mechanical means to control simultaneously the supplyof liquid fuel to the vaporizing-coil and the number of burner-openingsto which the vaporized fuel is delivered.

10. In a burner, a corrugated burner-plate, the ridges of saidcorrugations being provided with burner-openings, a valve device fittingthe under side of one of said ridges and when in one position closingsaid openings, and when in another position opening them but preventingthe passage of vaporized fuel to the other openings.

11. A burner, a corrugated burner-plate forming the top of thevapor-chamber, the

ridges of the corrugations being provided with burner-openings, a valvedevice beneath one of said ridges and through which the vaporized fuelis admitted to the vapor-chamber, and means to turn said valve wherebythe number of burner-openings to which the vaporized fuel is deliveredmay be regulated.

12. In a burner, a corrugated burner-plate forming the top of thevapor-chamber, the ridges of the corrugations being provided withburner-openings, a vaporizing-coilabove the burner-plate, a valve devicebeneath one of the ridges of said plate through which valve device thevaporized fuel is admitted to the vapor-chamber, a supply-valvecontrolling the supply of liquid fuel to the vaporizing-coil, andoperative connections between said supply-valve and valve device.

13. In a burner, a burner-plate having a plurality of burner-openings, avaporizing-coil above-said plate, a valve controlling the supply ofliquid fuel to the vaporizing-coil, another valve determining the numberof burner-openings to which the vaporized fuel is delivered, andmechanical means connecting said valves for simultaneous operation.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

FREDERICK E. GROUT. Vitnesses:

GHAs. H. EGER, CLARENCE R. GRAY.

